an inhabitant of hell; "his roar made the infernals quake" being of a lower world of the dead; "infernal regions" characteristic of or resembling hell; "infernal heat and noise" relating to or inhabiting hell; "his infernal majesty"; "infernal fires"; "infernal punishments
extremely evil or cruel; expressive of cruelty or befitting hell; "something demonic in him--something that could be cruel"; "fires lit up a diabolic scene"; "diabolical sorcerers under the influence of devils"; "a fiendish despot"; "hellish torture"; "infernal instruments of war"; "satanic cruelty"; "unholy grimaces"
expletives used informally as intensifiers; "he's a blasted idiot"; "it's a blamed shame"; "a blame cold winter"; "not a blessed dime"; "I'll be damned (or blessed or darned or goddamned) if I'll do any such thing"; "he's a damn (or goddam or goddamned) fool"; "a deuced idiot"; "tired or his everlasting whimpering"; "an infernal nuisance"
relating to or inhabiting hell; "his infernal majesty"; "infernal fires"; "infernal punishments
Of or pertaining to, resembling, or inhabiting, hell; suitable for hell, or to the character of the inhabitants of hell; hellish; diabolical; as, infernal spirits, or conduct
Infernal is used to describe things that relate to hell. the goddess of the infernal regions
Of or pertaining to or suitable for the lower regions, inhabited, according to the ancients, by the dead; pertaining to Pluto's realm of the dead, the Tartarus of the ancients
emphasis Infernal is used to emphasize that something is very annoying or unpleasant. The post office is shut, which is an infernal bore